This cover was in a plastic cover written on the plastic cover valuable keep safe.I dont seem to find anything valuable in it. Is there anything valuable here that I am not able to see. Any feed backs and inputs will be appreciated.Thanks.
There were no "first Flights" that date and no "Zepp" connection; and there are no first day of issue connections on the 4th Bureau Issues or the Postal Stationary. I don't see anything else.
It's 1931 so it's pre-war. It is a nice clean cover for an uprated air post postal envelope. Postmarks are easy to read. It would sell for a few bucks or more if listed.
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